/* ============================================================
   Eureka Laser · main.css
   设计令牌源：docs/07 §3.1（Logo 蓝 #1D5BC7 + 藏蓝 #0C1B4D + 火花橙 #F2994A）
   字体：Rawline（设计师提供，assets/fonts/），fallback 系统栈
   性能预算：本文件为唯一前端样式文件
   ============================================================ */

/* ── 字体 ─────────────────────────────────────────────── */
@font-face { font-family: 'Rawline'; src: url('../fonts/rawline-400.ttf') format('truetype'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Rawline'; src: url('../fonts/rawline-500.ttf') format('truetype'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Rawline'; src: url('../fonts/rawline-600.ttf') format('truetype'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Rawline'; src: url('../fonts/rawline-700.ttf') format('truetype'); font-weight: 700; font-display: swap; }

/* ── 设计令牌 ─────────────────────────────────────────── */
:root {
  --brand: #1D5BC7;
  --brand-dark: #0C1B4D;
  --brand-bright: #227ED4;
  --brand-tint: #D2DBEA;
  --bg-soft: #EAF1FB;
  --bg-gray: #F1F2F5;
  --line: #E6E7EC;
  --text: #4A5568;
  --muted: #9C9EA0;
  --accent: #F2994A;
  --success: #16A34A;
  --whatsapp: #25D366;
  --white: #fff;

  --font: 'Rawline', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(12, 27, 77, .08);
  --shadow-lg: 0 18px 46px rgba(12, 27, 77, .16);
  --container: 1200px;
  --section-y: clamp(64px, 8vw, 112px);
  --header-h: 72px;
}

/* ── 基础 ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-bright); }
h1, h2, h3, h4 { color: var(--brand-dark); font-weight: 700; line-height: 1.2; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.container { max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: var(--section-y); }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-eyebrow {
  margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--brand);
}
.section-title { font-size: clamp(26px, 3.2vw, 38px); }
.section-sub { color: var(--text); font-size: 17px; }

.screen-reader-text {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px); word-wrap: normal !important;
}
.skip-link:focus {
  position: fixed; top: 12px; left: 12px; z-index: 999; width: auto; height: auto;
  clip: auto; background: var(--brand-dark); color: #fff; padding: 10px 16px; border-radius: 8px;
}
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }

/* ── 按钮 ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-sm); border: 1.5px solid transparent;
  font-family: var(--font); font-size: 15px; font-weight: 600; line-height: 1.2;
  cursor: pointer; transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-lg { padding: 15px 28px; font-size: 16px; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-bright); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #e08a37; color: #fff; }
.btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn-ghost:hover { background: #fff; color: var(--brand-dark); }
.btn-outline { background: #fff; color: var(--brand); border-color: var(--brand); }
.btn-outline:hover { background: var(--brand); color: #fff; }
.btn-whatsapp { background: var(--whatsapp); color: #fff; }
.btn-whatsapp:hover { background: #1fb857; color: #fff; }

/* ── 顶部联系条 ───────────────────────────────────────── */
.topbar { background: var(--brand-dark); color: var(--brand-tint); font-size: 13.5px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 40px; gap: 16px; }
.topbar-contacts { display: flex; gap: 24px; flex-wrap: wrap; }
.topbar-contacts a, .topbar-social a {
  display: inline-flex; align-items: center; gap: 7px; color: var(--brand-tint);
}
.topbar-contacts a:hover, .topbar-social a:hover { color: #fff; }
.topbar-social { display: flex; gap: 14px; }

/* ── 头部 / 主导航 ────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: #fff; border-bottom: 1px solid var(--line);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; gap: 28px; min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; }
.brand img, .brand-logo { height: 32px; width: auto; }
.header-actions { display: flex; align-items: center; gap: 16px; margin-left: auto; }

.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 26px 0; color: var(--brand-dark); font-size: 15.5px; font-weight: 600;
}
.nav-menu > li > a:hover { color: var(--brand); }
.nav-menu li.current-menu-item > a,
.nav-menu li.current_page_item > a { color: var(--brand); }

/* 下拉 / mega menu */
.sub-menu {
  position: absolute; top: 100%; left: 0; min-width: 220px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); padding: 10px;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu li a { display: block; padding: 9px 12px; border-radius: 6px; color: var(--brand-dark); font-size: 14.5px; }
.sub-menu li a:hover { background: var(--bg-soft); color: var(--brand); }

.sub-menu-mega {
  display: grid; grid-template-columns: repeat(4, 190px); gap: 14px;
  width: max-content; max-width: 92vw; padding: 18px;
}
.mega-item a { display: block; padding: 0; border-radius: var(--radius-sm); overflow: hidden; }
.mega-item img { width: 100%; height: 108px; object-fit: cover; border-radius: var(--radius-sm); }
.mega-item-label {
  display: block; padding: 8px 4px 2px; font-size: 14px; font-weight: 600; color: var(--brand-dark);
}
.mega-item a:hover .mega-item-label { color: var(--brand); }
.mega-all { display: flex; align-items: flex-end; }
.mega-all .mega-item-label { color: var(--brand); }

/* 语言切换 */
.lang-switch ul { display: flex; gap: 8px; }
.lang-switch a {
  display: inline-block; padding: 5px 9px; border: 1px solid var(--line);
  border-radius: 6px; font-size: 12.5px; font-weight: 700; letter-spacing: .04em;
  color: var(--text); text-transform: uppercase;
}
.lang-switch a:hover { border-color: var(--brand); color: var(--brand); }
.lang-switch .current-lang a { background: var(--brand); border-color: var(--brand); color: #fff; }

/* 移动端开关 */
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: none; cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 24px; height: 2px; background: var(--brand-dark);
  margin: 0 auto; position: relative; transition: transform .2s ease;
}
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ''; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -7px; }
.nav-toggle-bars::after { top: 7px; }

/* ── Hero ─────────────────────────────────────────────── */
.hero { position: relative; min-height: 620px; display: flex; align-items: center; overflow: hidden; background: var(--brand-dark); }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(12, 27, 77, .88) 0%, rgba(12, 27, 77, .55) 46%, rgba(12, 27, 77, .18) 100%);
}
.hero-inner { position: relative; z-index: 1; color: #fff; max-width: 760px; padding-block: 90px; }
.hero-eyebrow { margin: 0 0 14px; letter-spacing: .18em; font-size: 13px; font-weight: 700; color: var(--brand-tint); }
.hero-title { color: #fff; font-size: clamp(34px, 5vw, 56px); margin-bottom: 18px; }
.hero-sub { color: rgba(255, 255, 255, .88); font-size: clamp(16px, 1.6vw, 19px); max-width: 620px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0 26px; }
.hero-chips { display: flex; gap: 22px; flex-wrap: wrap; color: var(--brand-tint); font-size: 14.5px; }
.hero-chips li { display: inline-flex; align-items: center; gap: 7px; }
.hero-chips .icon { color: var(--accent); }

/* ── 七大类产品矩阵 ───────────────────────────────────── */
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.category-card {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-tint); }
.category-media { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-gray); }
.category-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.category-card:hover .category-media img { transform: scale(1.05); }
.category-body { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 18px; }
.category-name { color: var(--brand-dark); font-weight: 700; font-size: 16.5px; }
.category-cta {
  display: inline-flex; align-items: center; gap: 6px; color: var(--brand);
  font-size: 13.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
}

/* ── 样品展示（横向滑动） ─────────────────────────────── */
.section-samples { background: var(--bg-soft); }
.samples-strip {
  display: grid; grid-auto-flow: column; grid-auto-columns: 300px; gap: 20px;
  overflow-x: auto; padding: 4px 24px 18px; scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}
.sample-card { margin: 0; scroll-snap-align: start; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.sample-card img { width: 100%; height: 240px; object-fit: cover; }
.sample-card figcaption { padding: 12px 16px; font-size: 14px; color: var(--brand-dark); font-weight: 600; }
.samples-more { margin-top: 34px; text-align: center; }

/* ── 服务承诺 ─────────────────────────────────────────── */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card {
  background: var(--bg-gray); border-radius: var(--radius); padding: 30px 26px;
  transition: background .2s ease, transform .2s ease;
}
.feature-card:hover { background: var(--bg-soft); transform: translateY(-3px); }
.feature-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 14px; background: #fff; color: var(--brand);
  margin-bottom: 16px; box-shadow: var(--shadow);
}
.feature-title { font-size: 17.5px; }
.feature-text { font-size: 14.5px; margin: 0; }

/* ── 工厂与认证 ───────────────────────────────────────── */
.section-trust { background: var(--bg-gray); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.trust-shot { margin: 0; border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.trust-shot img { width: 100%; height: 240px; object-fit: cover; }
.trust-shot figcaption { padding: 12px 16px; font-size: 14px; color: var(--brand-dark); font-weight: 600; }
.cert-row { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 36px; }
.cert-badge {
  padding: 12px 26px; border-radius: 999px; background: #fff; border: 1.5px solid var(--brand-tint);
  color: var(--brand-dark); font-weight: 700; letter-spacing: .08em; font-size: 15px;
}
.cert-badge-note { border-style: dashed; color: var(--muted); font-weight: 500; letter-spacing: 0; font-size: 13.5px; }

/* ── 行业应用 ─────────────────────────────────────────── */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.app-card {
  position: relative; border-radius: var(--radius); overflow: hidden; display: block;
  aspect-ratio: 4 / 3; background: var(--brand-dark);
}
.app-card img { width: 100%; height: 100%; object-fit: cover; opacity: .82; transition: transform .35s ease, opacity .2s ease; }
.app-card:hover img { transform: scale(1.06); opacity: .7; }
.app-label {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 34px 20px 16px;
  background: linear-gradient(transparent, rgba(12, 27, 77, .85));
  color: #fff; font-weight: 700; font-size: 16.5px;
}

/* ── CTA 带 ───────────────────────────────────────────── */
.section-cta { background: linear-gradient(105deg, var(--brand-dark), var(--brand)); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap; }
.cta-text h2 { color: #fff; font-size: clamp(24px, 2.6vw, 32px); margin-bottom: 8px; }
.cta-text p { color: rgba(255, 255, 255, .85); margin: 0; max-width: 560px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ── 页脚 ─────────────────────────────────────────────── */
.site-footer { background: var(--brand-dark); color: var(--brand-tint); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 34px;
  padding-block: 64px 44px;
}
.footer-logo { height: 30px; width: auto; margin-bottom: 16px; }
.footer-desc { font-size: 14.5px; color: var(--brand-tint); max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(210, 219, 234, .3); color: var(--brand-tint);
}
.footer-social a:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.footer-title { color: #fff; font-size: 15px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--brand-tint); font-size: 14.5px; }
.footer-col a:hover { color: #fff; }
.contact-list a { display: inline-flex; align-items: center; gap: 9px; }
.contact-list .btn-whatsapp { color: #fff; padding: 10px 18px; }
.footer-note { font-size: 13px; color: var(--muted); margin-top: 14px; }
.footer-bottom { border-top: 1px solid rgba(210, 219, 234, .16); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 62px; font-size: 13.5px; }
.footer-bottom p { margin: 0; color: var(--muted); }
.to-top {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(210, 219, 234, .3);
  background: none; color: var(--brand-tint); font-size: 17px; cursor: pointer;
}
.to-top:hover { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ── 浮动 WhatsApp ────────────────────────────────────── */
.float-whatsapp {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  display: inline-flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--whatsapp); color: #fff; box-shadow: var(--shadow-lg);
  transition: transform .18s ease;
}
.float-whatsapp:hover { transform: scale(1.08); color: #fff; }

/* ── 响应式 ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .nav-toggle { display: inline-block; }
  .header-cta span { display: none; }
  .header-cta { padding: 12px; }

  .primary-nav {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 120;
    width: min(380px, 88vw); background: #fff; padding: 88px 24px 24px;
    box-shadow: var(--shadow-lg); overflow-y: auto;
    transform: translateX(105%); transition: transform .25s ease;
  }
  body.nav-open .primary-nav { transform: translateX(0); }
  body.nav-open::after {
    content: ''; position: fixed; inset: 0; z-index: 110; background: rgba(12, 27, 77, .45);
  }

  .nav-menu { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-menu > li > a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .sub-menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: 0; padding: 6px 0 10px 12px; display: none;
  }
  .menu-item-has-children.is-open > .sub-menu { display: block; }
  .sub-menu-mega { grid-template-columns: repeat(2, 1fr); width: auto; max-width: none; gap: 10px; }
  .mega-item img { height: 86px; }
}

@media (max-width: 768px) {
  .topbar-contacts span { display: none; }
  .hero { min-height: 520px; }
  .trust-grid, .app-grid { grid-template-columns: 1fr; }
  .samples-strip { grid-auto-columns: 240px; }
  .sample-card img { height: 190px; }
  .cta-inner { text-align: center; justify-content: center; }
}

@media (max-width: 560px) {
  .category-grid, .feature-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .float-whatsapp { right: 16px; bottom: 16px; }
}

/* ── 动效偏好 ─────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ============================================================
   第二部分：产品页 / 归档 / 内容页 / 表单 组件
   ============================================================ */

.container-narrow { max-width: 860px; }

/* ── 面包屑 ───────────────────────────────────────────── */
.breadcrumbs { padding-top: 18px; font-size: 13.5px; color: var(--muted); }
.breadcrumbs a { color: var(--text); }
.breadcrumbs a:hover { color: var(--brand); }
.crumb-sep { margin: 0 6px; color: var(--line); }

/* ── 产品首屏 ─────────────────────────────────────────── */
.product-hero { background: var(--bg-soft); padding-top: 34px; }
.product-hero-inner {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center;
  padding-bottom: 46px;
}
.product-hero-media {
  background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.product-hero-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.product-model-chip {
  display: inline-block; margin: 0 0 12px; padding: 5px 12px; border-radius: 999px;
  background: var(--brand-tint); color: var(--brand-dark);
  font-size: 13px; font-weight: 700; letter-spacing: .06em;
}
.product-title { font-size: clamp(26px, 3.4vw, 40px); }
.product-short { font-size: 17px; }
.spec-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 8px; }
.spec-chips li {
  padding: 8px 16px; border-radius: 999px; background: #fff; border: 1px solid var(--brand-tint);
  color: var(--brand-dark); font-weight: 700; font-size: 14.5px;
}
.cert-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0 22px; }
.cert-chips li {
  padding: 5px 13px; border-radius: 6px; background: rgba(22, 163, 74, .1); color: var(--success);
  font-size: 13px; font-weight: 700;
}
.highlights {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin: 0 0 40px;
}
.highlights li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 6px; font-size: 14px;
}
.highlights strong { color: var(--brand-dark); font-size: 15.5px; }
.highlight-icon { color: var(--brand); }

.product-anchor-nav {
  position: sticky; top: var(--header-h); z-index: 50;
  background: #fff; border-block: 1px solid var(--line);
}
.product-anchor-inner { display: flex; gap: 26px; overflow-x: auto; }
.product-anchor-inner a {
  padding: 15px 2px; color: var(--brand-dark); font-size: 14.5px; font-weight: 600; white-space: nowrap;
}
.product-anchor-inner a:hover { color: var(--brand); }

/* ── 规格表 ───────────────────────────────────────────── */
.product-content.prose { max-width: 820px; margin: 0 auto 36px; }
.spec-table {
  width: 100%; border-collapse: collapse; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  font-size: 15px;
}
.spec-table th, .spec-table td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.spec-table tbody tr:nth-child(odd) { background: var(--bg-gray); }
.spec-table th { color: var(--brand-dark); font-weight: 600; width: 40%; }
.spec-table thead th { background: var(--brand-dark); color: #fff; width: 50%; }
.samples-table { max-width: 640px; margin-inline: auto; }
.sub-title { font-size: 18px; margin: 30px 0 12px; }

/* ── 案例卡 ───────────────────────────────────────────── */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 40px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; padding-bottom: 18px;
}
.case-card img { width: 100%; height: 190px; object-fit: cover; }
.case-card h3 { font-size: 16.5px; margin: 14px 18px 6px; }
.case-card p { margin: 0 18px; font-size: 14px; }

/* ── 图集 ─────────────────────────────────────────────── */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-item { display: block; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-gray); }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .3s ease; }
.gallery-item:hover img { transform: scale(1.04); }

/* ── 视频门面 ─────────────────────────────────────────── */
.video-facade {
  position: relative; max-width: 900px; margin: 0 auto; aspect-ratio: 16 / 9;
  border-radius: var(--radius); overflow: hidden; background: var(--brand-dark); cursor: pointer;
}
.video-facade img { width: 100%; height: 100%; object-fit: cover; opacity: .85; }
.video-play {
  position: absolute; inset: 0; margin: auto; width: 84px; height: 84px; border-radius: 50%;
  border: 0; background: var(--accent); color: #fff; font-size: 26px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.video-play:hover { background: #e08a37; }

/* ── FAQ ──────────────────────────────────────────────── */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  margin-bottom: 12px; padding: 0 22px;
}
.faq-item summary {
  cursor: pointer; padding: 18px 0; font-weight: 700; color: var(--brand-dark); font-size: 16px;
  list-style: none; display: flex; justify-content: space-between; gap: 12px;
}
.faq-item summary::after { content: '+'; color: var(--brand); font-size: 20px; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { margin: 0 0 18px; font-size: 15px; }

/* ── 下载卡 ───────────────────────────────────────────── */
.download-card {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: var(--bg-soft); border-radius: var(--radius); padding: 26px 30px; margin-bottom: 12px;
}
.download-card h3 { margin: 0 0 6px; }
.download-card p { margin: 0; font-size: 14.5px; }

/* ── 询盘表单 ─────────────────────────────────────────── */
.section-product-inquiry { background: var(--bg-gray); }
.inquiry-form-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.form-field { margin: 0; }
.form-field-wide { grid-column: 1 / -1; }
.form-field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; color: var(--brand-dark); }
.form-field input, .form-field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 15px; color: var(--text); background: #fff;
}
.form-field input:focus, .form-field textarea:focus { border-color: var(--brand); outline: none; }
.form-hp { position: absolute; left: -9999px; }
.form-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.form-alert { padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 20px; font-weight: 600; }
.form-alert-ok { background: rgba(22, 163, 74, .1); color: var(--success); }
.form-alert-err { background: rgba(242, 153, 74, .14); color: #b96a12; }
.page-inquiry { margin-top: 44px; }

/* ── 产品网格 / 产品卡 ─────────────────────────────────── */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card-media { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-gray); }
.product-card-media img { width: 100%; height: 100%; object-fit: cover; }
.product-card-body { display: flex; flex-direction: column; gap: 10px; padding: 20px 22px 22px; flex: 1; }
.product-card-title { font-size: 18px; margin: 0; }
.product-card-title a { color: var(--brand-dark); }
.product-card-title a:hover { color: var(--brand); }
.product-card-desc { font-size: 14.5px; margin: 0; }
.product-card-cta {
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .05em;
}

/* ── 归档头图 ─────────────────────────────────────────── */
.archive-hero { position: relative; min-height: 320px; display: flex; align-items: center; overflow: hidden; background: var(--brand-dark); }
.archive-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.archive-hero-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(12,27,77,.86), rgba(12,27,77,.4)); }
.archive-hero-inner { position: relative; z-index: 1; color: #fff; padding-block: 64px; }
.archive-hero-inner h1 { color: #fff; font-size: clamp(28px, 3.6vw, 42px); }
.archive-hero-inner p { color: rgba(255,255,255,.85); max-width: 640px; margin: 0; }

/* ── 博客卡 / 文章页 ──────────────────────────────────── */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.post-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.post-thumb img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.post-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-meta { margin: 0; font-size: 13px; color: var(--muted); }
.post-title { font-size: 18px; margin: 0; }
.post-title a { color: var(--brand-dark); }
.post-title a:hover { color: var(--brand); }
.post-excerpt { font-size: 14.5px; margin: 0; }
.post-more { margin-top: auto; font-weight: 700; font-size: 14px; }
.post-head { text-align: center; margin: 26px 0 30px; }
.post-title-lg { font-size: clamp(28px, 3.6vw, 42px); }
.post-hero-img { margin: 0 0 34px; border-radius: var(--radius); overflow: hidden; }
.post-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 44px; font-size: 14.5px; }
.prose h2 { font-size: 26px; margin-top: 1.6em; }
.prose h3 { font-size: 20px; margin-top: 1.4em; }
.prose ul { list-style: disc; padding-left: 1.4em; margin: 0 0 1em; }
.prose li { margin-bottom: .4em; }
.prose img { border-radius: var(--radius-sm); }
.empty-note { text-align: center; color: var(--muted); padding: 30px 0; }

/* ── 分页 / 搜索 / 404 ────────────────────────────────── */
.pagination, .nav-links { display: flex; justify-content: center; gap: 8px; margin-top: 44px; }
.pagination .page-numbers, .nav-links .page-numbers {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); color: var(--brand-dark); font-weight: 600;
}
.pagination .current, .nav-links .current { background: var(--brand); border-color: var(--brand); color: #fff; }
.search-results { max-width: 820px; margin: 0 auto; }
.search-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.search-type { margin: 0 0 4px; font-size: 12.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); }
.search-title { font-size: 20px; margin: 0 0 6px; }
.search-title a { color: var(--brand-dark); }
.search-excerpt { margin: 0; font-size: 14.5px; }
.search-404 { max-width: 480px; margin: 30px auto; }
.search-404 input[type="search"], .search-form input[type="search"] {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--radius-sm); font-size: 15px;
}
.cat-links-404 { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 26px 0; }
.cat-links-404 a {
  padding: 9px 18px; border: 1px solid var(--brand-tint); border-radius: 999px; color: var(--brand-dark); font-weight: 600;
}
.cat-links-404 a:hover { border-color: var(--brand); color: var(--brand); }

/* ── 响应式（第二部分） ───────────────────────────────── */
@media (max-width: 1024px) {
  .product-hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .highlights { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .post-grid, .gallery-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .form-grid { grid-template-columns: 1fr; }
  .download-card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .highlights, .product-grid, .post-grid, .gallery-grid, .case-grid { grid-template-columns: 1fr; }
  .inquiry-form-wrap { padding: 22px; }
}